| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 5458.66 | 22 |
| 2015 | 5847.11 | 21 |
| 2014 | 5263.2 | 26 |
| 2013 | 5520.25 | 22 |
| 2012 | 5459.82 | 22 |
| 2011 | 5301.63 | 23 |
| 2010 | 4236.27 | 27 |
| 2009 | 3329.76 | 28 |
| 2008 | 3615.58 | 28 |
| 2007 | 2875.31 | 31 |
| 2006 | 2325.57 | 31 |
| 2005 | 1987.37 | 33 |
| 2004 | 1646.58 | 36 |
| 2003 | 1275.87 | 36 |
| 2002 | 977.24 | 40 |
| 2001 | 2686.97 | 19 |
| 2000 | 2842.04 | 17 |
| 1999 | 2835.23 | 18 |
| 1998 | 2989.48 | 16 |
| 1997 | 2928.59 | 18 |
| 1996 | 2721.5 | 21 |
| 1995 | 2580.32 | 21 |
| 1994 | 2574.4 | 18 |
| 1993 | 2367.42 | 18 |
| 1992 | 2287.89 | 20 |
| 1991 | 1897.2 | 20 |
| 1990 | 1413.52 | 25 |
| 1989 | 766.37 | 32 |
| 1988 | 1262.07 | 21 |
| 1987 | 1111.06 | 21 |
| 1986 | 1109.34 | 20 |